Radeon R9 M395X Mac Edition vs GeForce 8400M GT
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 512MB VRAM GeForce 8400M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon R9 M395X Mac Edition 's Advantages
Released 8 years late
More VRAM (4GB vs 512GB)
Larger VRAM bandwidth (174.7GB/s vs 19.20GB/s)
2032 additional rendering cores
GeForce 8400M GT 's Advantages
Lower TDP (14W vs 250W)
Score
Benchmark
FP32 (float)
Radeon R9 M395X Mac Edition
+12737%
3723
GeForce 8400M GT
29
Graphics Card
May 2015
Release Date
May 2007
Crystal System
Generation
GeForce 8M
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 1.0 x16
Clock Speeds
1365 MHz
Memory Clock
600 MHz
Memory
4GB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
174.7GB/s
Bandwidth
19.20GB/s
Render Config
32
Compute Units
-
-
SM Count
2
2048
Shading Units
16
128
TMUs
8
32
ROPs
4
16 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
32 KB
Theoretical Performance
29.09 GPixel/s
Pixel Rate
1.800 GPixel/s
116.4 GTexel/s
Texture Rate
3.600 GTexel/s
3.723 TFLOPS
FP16 (half)
-
3.723 TFLOPS
FP32 (float)
28.80 GFLOPS
232.7 GFLOPS
FP64 (double)
-
Board Design
250W
TDP
14W
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
Amethyst
GPU Name
G86
Amethyst XT
GPU Variant
G86-603-A2
GCN 3.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
80 nm
5 billion
Transistors
0.21 billion
366 mm²
Die Size
127 mm²
Graphics Features
12 (12_0)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
2.0
OpenCL
1.1
1.2
Vulkan
N/A
-
CUDA
1.1
6.3
Shader Model
4.0